I am planing to build the mosfet follower on esp site (Project 83) , as per the suggestions on that page the pre section will be powered by the DOZ Preamp .I want to incorporate Amp , Pre , and capacitance multiplier on a single PCB and i have some doubts on the implementation . can i power the pre section from same supply section of the amp ( from capacitance multiplier ) or do i have to use the preamp power supply specified for doz pre on esp will this have significant effect on sound quality ?. If i had to add a volume control should it be added in between the the pre and amp or before pre section ?
